Under normal circumstances, white hair will grow up after the age of 40. This is because as the age increases, the nature of the kidneys gradually weakens, the liver is not enough, the hair cannot be lifted, and white hair appears. This is a natural phenomenon and does not require treatment. If the hair suddenly turns white, it is mainly due to the disorder of the air in the body. At this time, for the treatment of the cause, white hair can often turn black again. Young adults and even young white hair are often referred to as “less whiteheads.” There are many reasons for lack of acquired whiteheads: malnutrition, such as lack of protein, vitamins, etc., as well as anxiety and tension can make the hair white. In addition, thyroid dysfunction and the like can also cause white hair.
Tawny or light yellow
Hypothyroidism; malnutrition; severe iron deficiency anemia and major diseases, leading to a decrease in melanin in the body, resulting in the lack of alkaline substances in black hair, black hair gradually yellow or yellowish.
Suffering from the disease can cause the hair to fade in color. In the case of systemic scleroderma, the hair will not only yellow in systemic lupus erythematosus, but also will fall off a lot. Children’s hair is sparse, due to lack of congenital hypoplasia, can also be accompanied by sitting, standing, walking, talking, teeth and other “five nights” phenomenon. Yellow-haired adolescent girls may be due to calcium deficiency. Calcium deficiency in adolescence is mainly characterized by night sweats, that is, sweating during sleep; less hair, dullness, yellowing; calf calf (gastrocnemius) at night. In addition, often perm, shampoo with alkaline water or washing powder, it will also damage the hair yellow.